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IBM General Purpose Bus Adapter
I have a new project planned, to experiment with an IBM XT, a Micro Computer Systems IEEE hard drive, and an IBM General Purpose Bus Adapter and software. The parts were borrowed from the University of Delaware Computer History Museum Project. For now pics of IEEE kit for IB... read more - Total messages in this thread: 1 |
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S-100 RAM Cards
I have gotten more confident with my ability to conclusively test various s-100 RAM cards, allocate programs to specific locations, change memory values, etc using my IMSAI. I can also assign the memory pages (0000-1000, 1000-2000, etc.) so that there can be more than one RAM card installed... read more - Total messages in this thread: 2 Last Post: 32K Continuous RAM 01/25/2008 |
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1973 Tech Pictures
------------------------------ Message: 10 Date: Fri, 25 Jan 2008 16:15:30 +0100 From: "pichotjm" - Total messages in this thread: 1 |
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Byte BYT-8 S-100 Computer
Pictures of my Byte BYT-8... read more - Total messages in this thread: 1 |
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Exatron Stringy Floppy Update
I have found a vendor for drive belts, and I have mailed out a snapped belt for analysis. The company is called Pyramid. I will post an update when available. I have four drives that need belts, and about 100 stringy floppies to read.... read more - Total messages in this thread: 3 Last Post: Belt Replacement Exatron Stringy Floppy 01/23/2008 |
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64 and 256K DRAM Testing Service
I have a RAMCHECK brand 64Kb / 256Kb DRAM chip tester...if anyone needs a chip tested, let me know. You send me the chips and I return then in whatever you sent them. The price/trade is negotiable. Limited time offer. Contact me if interested. 16 pins - here are some ... read more - Total messages in this thread: 1 |
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TM990/101 M
I have a TI chassis I have been unable to locate documentation. Can anyone help shed some light on the following. .? The card chassis: Within a Steel 4-slot Texas Instruments card chassis the size of a shoe box are four Texas Instruments cards manufactured in the US. These cards resemble a regul... read more - Total messages in this thread: 5 Last Post: FAO Richard Lynch (was TM990/101 M) 01/19/2008 |
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Replacing an Apple III Power Supply
Received an Apple III not powering up. Noticed that the fuse appeared to be blown. It's a 5mf 2 3/4 A fuse about 3/4" tall. Confirmed that this the correct fuse. Bought replacement fuse, that one popped too...must be a bad power supply...... read more - Total messages in this thread: 2 Last Post: Replaced Power Supply 01/08/2008 |
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Chuck Peddle Vintage Computer Festival
Chuck Peddle Speaks at the the Vintage Computer Festival East 2007 http://www.marchclub.org/audio/recording4.htm Streaming audio by ?? (someone tell me, I remember the face but not the name.)... read more - Total messages in this thread: 1 |
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IBM PS/2 model 70
I picked up an IBM PS/2 model 70 but it has a bad (or dirty) disk drive - working to restore to Windows 386 (thanks Bryan) and DOS 4.0, as it would have had in the Summer/Fall of 1988 when the 70 was launched. My 70 has 6 Megs. No, I am not loading OS/2.... read more - Total messages in this thread: 2 Last Post: Source for PS/2 1.44 Drive 15F7503 01/06/2008 |
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IBM Thinkpad 755 CD
I have an IBM Thinkpad with a bad keyboard, I plan to replace and rebuild. more to follow. ... read more - Total messages in this thread: 1 |
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Data Acquisition Corporation DAC-512
FYI The following link was submitted through this web site of a Data Acquisition Corporation DAC-512 brochure scan by Charles Falconer: http://cbfalconer.home.att.net/firstpc/ Chuck designed the machine. He was VP and Chief Engineer Please use the address below for any replies. Chuck F (cbf... read more - Total messages in this thread: 1 |
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Research Library
One of these days I will post a complete list of all of the books and magazines, product literature and docs on hand. Here are a few snapshots: Pics... read more - Total messages in this thread: 1 |
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Toshiba Laptops
I have a couple of Toshiba Laptops that do not work. I believe that they're salvageable, but I am not that interested in them. Contact me if you want them cheap. Pics ... read more - Total messages in this thread: 1 |
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Commodore troubleshooting links
Here are some useful Commodore troubleshooting links. http://www.zimmers.net/anonftp/pub/cbm/schematics/computers/index.html http://www.devili.iki.fi/Computers/Commodore/index.html... read more - Total messages in this thread: 1 |
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